Air-washing apparatus.



W. D. PHILIPS.

AIR WASHING APPARATUS.

APPLICATION FILED JUNE 15. 1917.

1,296,315. Patented Mar. 4,1919.

5] vwewtoz,

WILLIAM ID. PHILIPS, OF BROOlKLYN, NEW YORK.

am-wasnmo APPARATUS.

Specification of Letters Patent;

Patented Mar. 4, 1919.

Application filed June 15, 1917. Serial No. 174,915; 1

To all whom it may concern:

Be it known that I, WILLIAM D. PHILIPS, a citizen of the United States, and a resident of the borough of Brooklyn, county of Kings, and State of New York, have invented a new and useful Improvement'in Air-Washing Apparatus, of which the following is a full, clear, and exact description.

My invention relates to improvements in air washing apparatus. Apparatus of this kind are generally alike in principle, that is the air to be washed of its impurities is drawn or forced through a spray or sheets of water so that the sediment and various impurities in. the air will be caught and washed down by the water, and the purified air will be drawn off and delivered at a desired point. Many devices of this character have been used, and most of them have rather elaborate and somewhat expensive means of producing the desired spray, and many of the forms of spraying devices used are unsatisfactory and of such a nature that impurities of the air which can be picked upby water are not always separated. The object of my invention is especially to provide a very simple and inexpensive means of forming the wash water into a spray sufficiently fine to thoroughly wash the air, and to prevent the water from being withdrawn with the air. Except for the form of picking up the water and throwing it into a spray, my apparatus can be of any usual conventional or preferred kind. For a spraying apparatus I use a series of rotating members, any desired number being used, which will dip into the water which is contained in the casing, and by centrifugal or scooping action, or both,-I pick the water up and throw it from the rotating members in the form of a spray. It will be seen that this arrangement can be of a very simple nature, the essential things being to have a rotatable shaft contained in the water holding casing, and to provide members on the shaft which by their rotation will pick up and throw off the water in spray form. t is desirable to use a relatively large number of such members, and

I have found by experiment that by having the rotating members in the form of thin -a drain pipe 18. means and the discharge end of the casing disks with serrated edges, and. with shallow buckets on opposite sides of each disk, at points coincident with the serrations, I get an excellent result, but my invention is not confined to the particular form of disk, though Iclaim this as a feature of the invention. All of which will be more clearly ilIldGI'StOOd from the description which folows. Reference is to be had to the accompany- 1ng drawings forming a part of this specification, in which similar reference characters indicate corresponding parts in all the views.

Figure 1 is a sectional plan of a common form of air washing apparatus provided with my improved spraying means.

Fig. 2 is a vertical longitudinal section of the apparatus.

Fig. 3 is a broken detail elevation of a section of one of the disks, and

Fig. 4 is a detail cross section of a part of 1(Sue of said rotary disks or spraying memers.

In order that the apparatus can be clearly understood, I have shown it applied to a somewhat common form of apparatus in.

which the casing 10 may be of any approved size, and is provided at one end with an air inlet 11 which as usual can connect by means of a pipe with any source of air'supply. 7 At the opposite end the casing is shown reduced as at 12' and connected by a pipe 13 with an exhauster 14: having an outlet 15 which can as usual have a pipe connection discharging at a desired point. So far as my invention is concerned it will be seen that the air can be either drawn through or blown through the casing, but the common method is tov draw it through by means of that it can be more volatile and more easily sprayed, and to this end I have shown, a

steam pipe 15 entering the casing and lying at the bottom in the form of a coil 16. I have also shown a water supply pipe 17 and Between the spraying are baflies 19 which permit the air to be withdrawn but which prevent the water from passing out to the washed air. All

the above apparatus is somewhat conventional and can be varied to suit difl'erent circumstances.

The spraying apparatus is mounted on a rotatable shaft 20 which extends transversely from the casing 10 and can be rotated by any suitable means, the shaft as shown having a pulley 21 by which it can be driven. On this shaft are rotatable members which di intothe water in the bottom of the casing, pick it up and throw it off in .the form of spray. It will be evident that various forms of apparatus can be used for this purpose, but in practice I have found the best means to consist of a rotating disk 22 secured to the shaft 20 and having serrations 23 at the edges which are generally radial. Near the inner end of each serration is formed a rather shallow bucket 24 which can be conveniently produced by doublin over the metal or material at the inner-en of one serration and allowing-the edge of the doubled over portion to taper gradually to the outer part of the next serration as shown clearly in Figs. 3 and 4. These buckets are formed alternately on opposite sides of the disk, and it will be seen that this arrangement produces a shallow bucket of a generally conical shape, closed at its inner end and opening outwardly and gradually so that as the member 22 rotates the water is icked up by the buckets and the centrifugal action expels it, but instead of expelling it in a jet form, the contour of the buckets opening gradually as they do and alon a curved line, causes the water to be bro en up and formed into a spray.- This action is alsofacilitated by the abrupt edges of the serrations 23, and .in fact the disk itself picks u the water on its sides and throws it ofl by centrifugal action, and the buckets intercept the water thus thrown off by the sides of the disk and breaks it up into spray form.

It will be seen that this arrangement makes an unusually simple form of spraying apparatus, and I have found by actual use that it is a very eflicient spraying means.

The rotating members can be made of any approved size, according to the size of the apparatus used, and they should be arranged as shown so that their lower edges will dip into the water. i

In practice the water picked up by the rotating members 22 fills the casing 10 with spray, and the air is drawn through this spray, washed of its impurities, and discharged at the desired point.

I wish it distinctly understood that my invention lies in the s raying means con.

sisting of rotating mem ers dipping into the water and discharging it centrifugally; that I prefer the form of rotating members shown,

' 22 so that these buckets instead of discharging the Water in a jet, throw it out in a spray, and further that they'act as baflles so that the water following the general plane of the disk bodies, strikes the flaring buckets and is broken up and forced out laterally as well as radially with reference to the disks, thus making a fine spray.

From the foregoing description it will be clearly understood that not only can the,

form of the rotating members forming the spraying device be changed without afi'ecting the invention, but also that the number .of these rotatingmembers will vary with the capacity of the apparatus, and that any number of rotating members can be used from one up and that if more than one is used they can be spaced apart as occasion requires. It will also be evident that while I have shown the spraying device arranged transversely to the flow of air through the casing, that this is not material, and that the spraying device can be arranged at any angle or position with relation to the air current so long as it dips into the water body and expels the water in-the form of a spray.

I claim 1. An apparatus of the kind described comprising awater containing casing, means for passing air therethrough, a rotatable shaftextending through the casing above the water, and disks spaced apart on the shaft and dipping into the water, each disk having near its periphery and on the sides tangentially arranged buckets of generally conical shape with widely flaring months.

2. A rotatable spraying device comprising disks spaced apart and having buckets on the sides thereof.

3. A rotatable spraying device comprising disks spaced apart and havin buckets on opposite sides of each disk mem er.

4, A rotatable spraying devicecomprising disk members spaced apart and provided with buckets having flaring mouths.

5. In an apparatus of the kind described, the spraying disk having flaring buckets on. opposite sides thereof.

6. In an apparatus of the kind described,

-the spraying disk having a serrated edge and buckets formed .between the serrations. 7. In a structure of the kind described,

the spraying disk having serrated edges and flaring buckets between the serrations 7 and on opposite sides of the disk the buckets alternating.

8. An apparatus of the kind described comprising a Water containing casing having means for assing air therethnough, and

a rotatable spraylng device comprising disks snaced apart and arranged to dip in the E. H. DE'rrmNG, WM. SCHOENBECK. 

